﻿<p>The <em>IfcPointOnCurve</em> is a point defined by a parameter value of its defining curve.</p>
<blockquote class="extDef">
NOTE&nbsp; Definition according to ISO/CD 10303-42:1992<br>
A point on curve is a point which lies on a curve. The point is determined by evaluating the curve at a specific parameter value. The coordinate space dimensionality of the point is that of the basis curve.</blockquote> 

<blockquote class="note">
NOTE&nbsp; Entity adapted from <strong>point_on_curve</strong> in ISO 10303-42.
</blockquote>
<blockquote class="history">
HISTORY&nbsp; New entity in IFC2x2.
</blockquote>

<p class="spec-head">Informal Propositions:</p> 
<ol>
<li>The value of the point parameter shall not be outside the parametric range of the curve.</li>
</ol>